{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1095773454",
    "entityType": "Track",
    "nonce": "0xf2c65a353d94b20e00f93c3e475ee6104b3647dee6da603a962a06547918b93b",
    "signature": "0xc08394e50b526e6db8b6dbdbc6a66e94098cee41185e503ec09519394008f1f80855e38e4760203ea4976bc4b1e3bedaf8739f2511d7bb38f245f295842036e21c",
    "signer": "0xa6E1d5f9cAB144C27c81A08F57f77081d7310d27",
    "userId": "217374"
  }
}